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Expressions-with-variables/314830: Seven more than twice Seth's age. 1 solutions Answer 225177 by Fombitz(13828)   on 2010-06-16 10:06:14 (Show Source): You can put this solution on YOUR website! Your problem setup seems to have been cut off. Please re-post.

logarithm/314762: Express as a single logarithm, and, if possible, simplify. 1/4loga x+8loga y-2loga x My choices are: A. Loga x7/4y4 B. Loga 1/7x4y4 C. Loga 7/x4/y4 D. Loga y8/7/x4 I picked D. Is this correct? 1 solutions Answer 225176 by Fombitz(13828)   on 2010-06-16 10:05:29 (Show Source): You can put this solution on YOUR website! . . . I'm not sure which of your answers, this answer corresponds to.

Square-cubic-other-roots/314816: Square root of (x+6)+ square root of (2-6)=4 1 solutions Answer 225175 by Fombitz(13828)   on 2010-06-16 10:00:48 (Show Source): You can put this solution on YOUR website! Check your 2nd expression "" and re-post your equation.

logarithm/314862: i need the answers to these following questions. what is the solution of the equation? 30/(1+6e^(-5x))=10 ln(x^2+3x)- ln 10=0 2lnx+ln3 e^(ln2.5) 1 solutions Answer 225174 by Fombitz(13828)   on 2010-06-16 09:58:25 (Show Source): You can put this solution on YOUR website! Only the first two are equations so only those can be solved. . . . . . . Two solutions: . . . . . . Please re-post the other two if you still need help with them.

test/314819: In the circle below, angle a = 7x + 2 and angle b = 9x - 4. Find the value of x 1 solutions Answer 225172 by Fombitz(13828)   on 2010-06-16 09:44:55 (Show Source): You can put this solution on YOUR website! No diagram found with a circle. Please re-post with more information.

Equations/314808: 1/6x+4/3=1/2x+7/3 1 solutions Answer 225171 by Fombitz(13828)   on 2010-06-16 09:43:13 (Show Source): You can put this solution on YOUR website! Multiply both sides by 6 to eliminate fractions.

Inequalities/314795: solve by elimination 6x=46+4y 5x+-34-7y 1 solutions Answer 225170 by Fombitz(13828)   on 2010-06-16 09:40:32 (Show Source): You can put this solution on YOUR website! You need to re-write the second equation. It's missing an "=". Please re-post.

Linear-equations/314786: write the equation of the horizontal line that passes through the point (-1,4) 1 solutions Answer 225169 by Fombitz(13828)   on 2010-06-16 09:39:17 (Show Source): You can put this solution on YOUR website! Horizontal means the slope equals zero. Use the point-slope form of a line, . . .

Linear-equations/314784: Write an equation of the line that passes through the point (2,-3) and is perpendicular to the line given by the equation 3x=4y+5. Give both the point-slope form as well as the slope-intercept form of the answer 1 solutions Answer 225167 by Fombitz(13828)   on 2010-06-16 09:34:30 (Show Source): You can put this solution on YOUR website! Perpendicular lines have slopes that are negative reciprocals. Use the point-slope form of a line, Convert to slope-intercept form, }

Rational-functions/314772: Hi, I have a few questions I'm having an extremely hard time figuring this out. 1. Find the vertex and intercepts of the parabola y=-3x^2+6 2. Solve the inequality, state the solution using the interval notation and graph it. x-3/x+5<0. These are both for Math 209. Thank you so much for your time and help. 1 solutions Answer 225166 by Fombitz(13828)   on 2010-06-16 09:28:07 (Show Source): You can put this solution on YOUR website! The parabola is already in vertex form, where (h,k) is the vertex. It's just a bit hidden. The vertex is (0,6). . . . x-3/x+5<0. Break up the number line into 3 regions. Region 1: (,) Region 2: (,) Region 3: (,) For each region, choose a point (not an endpoint) and test the inequality. If the inequality is solved, that region is part of the solution. . . . Region 1: False, this region is not part of the solution. . . . Region 2: True, this region is part of the solution. . . . Region 3: False, this region is not part of the solution. . . . Only Region 2 is the solution region. (,) . . . . . . The curve is below the x-axis(< 0) on in the region (-5,3).

Graphs/314857: how do you graph this equation: y=50x+150 1 solutions Answer 225165 by Fombitz(13828)   on 2010-06-16 09:16:48 (Show Source): You can put this solution on YOUR website! When , :(0,150) When , :(-3,0) You now have two points, plot them and connect them with a line.

Problems-with-consecutive-odd-even-integers/314852: How many numbers from 1 to 200 inclusive are equal to the cube of an integer? 1 solutions Answer 225164 by Fombitz(13828)   on 2010-06-16 09:12:05 (Show Source): You can put this solution on YOUR website! So from 1 to 200 there are 5 perfect cubes.

logarithm/314856: log[2 · x]=2.5 I know the answer is 158.11 but i don't know the steps. 1 solutions Answer 225163 by Fombitz(13828)   on 2010-06-16 09:07:47 (Show Source): You can put this solution on YOUR website!

Mixture_Word_Problems/314801: how many gallons of a 40% antifreeze solution and a 70% antifreeze solution must be mixed to get 24 gallons of a 50% antifreeze solution? 1 solutions Answer 225140 by Fombitz(13828)   on 2010-06-15 23:21:09 (Show Source): You can put this solution on YOUR website! 1. 2. Multiply eq. by -40 and add to eq. 1, Then from eq. 2, . . . 16 gallons of 40% solution and 8 gallons of 70% solution.

Sequences-and-series/314774: find the sum of the first five terms of the geometric sequence a=12, r=4 1 solutions Answer 225139 by Fombitz(13828)   on 2010-06-15 23:16:57 (Show Source): You can put this solution on YOUR website!

Linear-equations/314780: Write the equation of the horizontal line that passes through (-1,4) 1 solutions Answer 225138 by Fombitz(13828)   on 2010-06-15 23:13:56 (Show Source): You can put this solution on YOUR website!

Equations/314810: Please help me with the answer to this question f(x)=9x+5,g(x)=7x-8 find (fg)(x) thank you 1 solutions Answer 225137 by Fombitz(13828)   on 2010-06-15 23:13:23 (Show Source): You can put this solution on YOUR website!

test/314766: identify all rational zeros of the polynomial function f(x)=3x^4-5x^3-29x^2+45x+18 1 solutions Answer 225136 by Fombitz(13828)   on 2010-06-15 23:11:04 (Show Source): You can put this solution on YOUR website! Looks like zeros ar x=-3,2,3 Verify using the polynomial, . . . A closer look reveal x=-1/3 as a possible root. The four roots are then x=,,,

Linear-systems/314765: y=a and x=b , a and b are real numbers. Is this dependent or independent? consostent or inconsistent? WHY 1 solutions Answer 225134 by Fombitz(13828)   on 2010-06-15 22:59:13 (Show Source): You can put this solution on YOUR website! They are independent and consistent since they are perpendicular to each other. There is one intersection point at (b,a).

Trigonometry-basics/314751: A ship is traveling at a abearing of 60 degrees for 3 miles then turns and travels at a bearaing of 150 degres for 2 miles then returns to where it started. Find the distance traveled by the ship. I am having a hard time even starting this problem. I tried drawing a 30 degree angle (using "North" as the terminal side and the 3 miles along the side that I drew going northeast). I thought I would use the Law of Sines or Cosines but I can't even begin the problem! Thank you! 1 solutions Answer 225133 by Fombitz(13828)   on 2010-06-15 22:55:44 (Show Source): You can put this solution on YOUR website! Break up the ship's travel into x and y components. 3 miles at 60=(,)=(,) 2 miles at 150=(,)=(,) At this point the ship's position is (1.5-1.732,2.598+1.0)=(-0.232,3.598) In order to return back the ship will have to travel in the x, and in the y. The total distance is The total distance the ship travels is then, miles

Square-cubic-other-roots/314712: square root 32x^3y^4 Simplify the radical, assume that all variables are nonnegative. 1 solutions Answer 225132 by Fombitz(13828)   on 2010-06-15 22:46:55 (Show Source): You can put this solution on YOUR website!

Square-cubic-other-roots/314711: square root 5x-5=square root 3x+7 Please show work. 1 solutions Answer 225131 by Fombitz(13828)   on 2010-06-15 22:44:59 (Show Source): You can put this solution on YOUR website! Square both sides.

Coordinate-system/314686: graph: y<2/3x-4 1 solutions Answer 225129 by Fombitz(13828)   on 2010-06-15 22:43:14 (Show Source): You can put this solution on YOUR website! First graph the line, Now pick a point not on the line. (0,0) is an easy choice. Test the inequality. False, so (0,0) is not in the solution region. Shade the region that doesn't include (0,0). Solved by pluggable solver: Plot Any Inequality Graphing function :

test/314671: 3(absolute sign)4x + 5 (absolute sign) +5 < 14 Solve the inequality. Write the solution set in interval notation 1 solutions Answer 225035 by Fombitz(13828)   on 2010-06-15 16:31:42 (Show Source): You can put this solution on YOUR website! and and and and . . . (,)

Geometry_Word_Problems/314675: if the area a of a triangle is 60sq m and the base b is 20m what is the altitude h 1 solutions Answer 225034 by Fombitz(13828)   on 2010-06-15 16:27:50 (Show Source): You can put this solution on YOUR website! The height is 6 meters.

Quadratic-relations-and-conic-sections/314676: Find the coordinates of the point halfway between (3,4) and (-2,5) 1 solutions Answer 225033 by Fombitz(13828)   on 2010-06-15 16:27:03 (Show Source): You can put this solution on YOUR website! Use the midpoint formula, . . . (,)

absolute-value/314534: 4|-6x + 6| + -3 = 93 1 solutions Answer 225032 by Fombitz(13828)   on 2010-06-15 16:25:52 (Show Source): You can put this solution on YOUR website! and and and

test/314670: (x + 2)^2/3 + 3(x + 2)^1/3 - 10 = 0 1 solutions Answer 225030 by Fombitz(13828)   on 2010-06-15 16:23:30 (Show Source): You can put this solution on YOUR website! Substitute first. Let , then Two "u" solutions: Not a valid solution since (-127)^(2/3) is undefined. . . .

test/314663: 36x^4 - 85x^2 + 49 = 0 1 solutions Answer 225028 by Fombitz(13828)   on 2010-06-15 16:14:20 (Show Source): You can put this solution on YOUR website! Let , then , You can factor, Two "u" solutions: . . . You then have 4 "x" solutions.

Geometry_proofs/314662: What is the p and the q in If-Then statements,and in postulates? 1 solutions Answer 225026 by Fombitz(13828)   on 2010-06-15 16:08:43 (Show Source): You can put this solution on YOUR website! p and q are variables that can have the value of TRUE or FALSE. As examples, p:The sun is in the sky. q:5>0 r:The Celtics beat the Lakers. s:Jim is smart. t:The vuvzelas at the World Cup games are annoying. . . . They take the place of the actual statements like x and y in algebraic expressions so that you can apply math logic rules without having to lug around entire statements.

Quadratic_Equations/314639: x square root + 25 x + 25 =9 1 solutions Answer 225022 by Fombitz(13828)   on 2010-06-15 16:01:24 (Show Source): You can put this solution on YOUR website! Is this the equation? or do you mean like this?